We were surprised, too. Their personality changed to be a lot more aggressive and they started compulsively lying, then stealing things from stores, and some strange draw toward self-harm and getting "corrective" surgeries. Previously, this person was typically pleasant, if not a little outspoken at times.

There is suspicion that they had a pre-existing mental health issue they were hiding, and the very fast changes that happened in their body triggered it to either manifest or get worse. We are left guessing because they refuse to see any doctors that won't just write prescriptions for meds or minor elective surgeries, now.

These days, more and more evidence is piling up about the gut-brain connection, but no conclusions are being drawn quite yet. Though, from my own experience, it is not difficult to convince me that one certainly impacts the other.

I'm sorry to hear that happened to someone close to you, thank you for sharing.